. 2020 Oct 5;11(11):2232–2237. doi: 10.1021/acsmedchemlett.0c00359

Table 1. IC₅₀ Values (μM) of Corilagin and TGG in Antioxidant Assays^a.

Assays	Corilagin	TGG	Trolox
Fe²⁺-chelation	7 ± 1^a	11 ± 4^b	14 ± 2^b, *
PTIO^•-scavenging (pH 7.4)	94 ± 8^a	115 ± 11^b	445 ± 35^c
PTIO^•-scavenging (pH 4.5)	204 ± 13^a	290 ± 35^b	289 ± 27^b
FRAP	12 ± 1^a	35 ± 2^b	81 ± 2^c
DPPH^•-scavenging	1 ± 0^a	1 ± 0^a	7 ± 0^b

The IC₅₀ value (in μM unit) was defined as the final concentration of 50% radical inhibition or relative reducing/chelating power, which was calculated via linear regression analysis (Figures S12–16, Supporting Information) and expressed as the mean ± SD (n = 3). The linear regression was analyzed by the Origin 2017 professional software. The IC₅₀ values with different superscripts (^a, ^b, or ^c) in the same row, differ significantly (p < 0.05). Trolox is the positive control (*denotes that the positive control is sodium citrate instead of Trolox). PTIO^•, 2-phenyl-4,4,5,5-tetramethylimidazoline-1-oxyl 3-oxide radical; FRAP, Fe³⁺-reducing antioxidant power; DPPH^•, 1,1-diphenyl-2-picrylhydrazyl radical.

Table 1. IC50 Values (μM) of Corilagin and TGG in Antioxidant Assaysa.

Table 1. IC₅₀ Values (μM) of Corilagin and TGG in Antioxidant Assays^a.